I've had loads of bites over the last few days and was horrified to discover that the dc at has fleas. I saw one moving across his skin ðŸ˜. Anyway, I had a knock off version of Spot On (from pound shop) and applied it to his neck. After I checked the ingredients it just said geraniol oil, no concentrations or other ingredients. From what I've read, this is just a repellent rather than an insecticide? Should I now use a proper flea treatment?